. 2021 Feb 2;2021:8836427. doi: 10.1155/2021/8836427
Copyright © 2021 César Fernández-De-Las-Peñas et al.
This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Figure 2.
Plot of risk of bias of the included studies.